1 / 16

Software-Defined Radio Project A Baseband Architecture for Multi-Standard Cell Phones

. . . . . . . . 2004. 2005. 2006. 2007. 2008. 2009. Status today:GSM/UMTSBluetoothIrDAFM Radio. WiFi 802.11b. DVB-T/H. WiMax. UWB Wireless USB. NFC. WiFi 802.11g. WiFi 802.11n. Bluetooth 2.0. GPS. Galileo. Cognitive Radio. Trend for Cell Phones. Future Cell Phones are Multi

mele
Download Presentation

Software-Defined Radio Project A Baseband Architecture for Multi-Standard Cell Phones

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    2. Future Cell Phones are Multi-Standard ! WiFi IEEE 802.11b: 11Mb/s wireless LAN @ 2.4GHz (< 100m) IEEE 802.11g: 54Mb/s wireless LAN @ 2.4GHz (< 100m) IEEE 802.11a: 54Mb/s wireless LAN @ 5GHz (< 100m) UWB (IEEE 802.15.3a): 480Mb/s wireless USB2.0 (~ 1m) WiMax (IEEE 802.16d/e): ~10Mb/s broadband wireless access NFC: Near Field Communications (RF-ID,) ZigBee: (IEEE 802.15.4) Sensor Networks, remote control Bluetooth Version 1: 723 kb/s EDR: 2.2 Mb/s WiFi IEEE 802.11b: 11Mb/s wireless LAN @ 2.4GHz (< 100m) IEEE 802.11g: 54Mb/s wireless LAN @ 2.4GHz (< 100m) IEEE 802.11a: 54Mb/s wireless LAN @ 5GHz (< 100m) UWB (IEEE 802.15.3a): 480Mb/s wireless USB2.0 (~ 1m) WiMax (IEEE 802.16d/e): ~10Mb/s broadband wireless access NFC: Near Field Communications (RF-ID,) ZigBee: (IEEE 802.15.4) Sensor Networks, remote control Bluetooth Version 1: 723 kb/s EDR: 2.2 Mb/s

    3. Outline Multi-Standard Radio: Requirements and Challenges Parallelism The Key to Low-Power and High-Performance The Baseband Processor Architecture Profiling Results Summary and Outlook

    4. Multi Standard Cell Phone Requirements More flexibility and scalability necessary for baseband processing Variety of existing and evolving standards Diversification of products Time to market Costs: one common platform for all regions and product classes Easy-to-program solution Standards to be supported (some of them concurrently) UMTS FDD at 384 kb/s CDMA2000 1x DV GSM/GPRS/EDGE class 12 IEEE 802.11b / g (802.11g with reduce data rate) Bluetooth DAB GPS

    5. Architecture Challenge for the Baseband Processor Strategy: Search for most flexible architecture that meets power constraints !

    6. Data Level Parallelism in DSPs Single Instruction Multiple Data (SIMD) or Vector Processing :

    7. Instruction Level Parallelism in DSPs Multiple instructions: e.g. VLIW :

    8. Task or Tread Level Parallelism in DSPs Multiple interleaved threads sharing one EU

    9. Baseband Processor Architecture

    10. Block Diagram of Multi-Tasked SIMD Core

    12. Profiling Test Case Transmission of a data frame from STA11) to STA2 according to 802.11b standard Reception of frame in STA2 Trace of tasks starting, terminating, synchronizing Trace of messages between PHY2) and MAC3) Generation of ACK4) frame upon correct reception Meet SIFS5) (see illustration on next page)

    14. Detailed Function Profiling

    15. Profiling Results Profiling on a virtual prototype is crucial for hardware optimization The overhead for synchronization between tasks running in different threads is very costly Mapping of tasks onto the hardware has to be done carefully Mapping must be supported by automatic tools

    16. Summary & Outlook Future multi-standard cell phones require flexible baseband processing Parallel LIW-SIMD processors offers most flexible solution Profiling results show feasibility of approach Virtual prototyping necessary for architecture space exploration Systematic design space exploration requires new approaches of function and architecture modeling Status and outlook Virtual prototype of platform available Demonstrator of platform by end of 2005 SDR RF Front-end cooperation between BWRC and Infineon Product possible in 2007/08

More Related